在信息系统建设过程中,组织内部业务部门与IT部门之间的信任,对信息系统成功至关重要。将信任分为能力信任和意愿信任,通过案例研究,构建业务部门与IT部门之间信任演化及影响因素模型,结果显示:双方处于关系探索期时,合作信任关系几乎完全是基于能力上的信任,而影响能力信任的主要是合作方的制度流程的规范性、能力、声誉。在后续合作过程中,信任水平逐渐提高,此阶段的信任属于意愿信任,而影响意愿信任的主要是合作方过往合作经历及合作过程中的沟通交流。 In the process of building an information system, the trust between the organization’s internal business units and the IT department is crucial to the success of the information system. Divided trust into ability trust and willingness trust. Through case studies, we build a model of trust evolution and influencing factors between business department and IT department. The results show that when both parties are in the relationship exploration period, the cooperative trust relationship is almost entirely based on the ability to trust , While the main factor influencing the ability to trust is the standardization, ability and reputation of the institutional flow of the partners. In the follow-up cooperation process, the level of trust is gradually increased. The trust in this phase belongs to the will to trust. The main factors that affect the willingness to trust are the cooperative cooperation experience and the communication during the cooperation.